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Patent Searching and Data


Matches 651 - 700 out of 2,711

Document Document Title
JP3098978B2
To improve pumping performance without deteriorating self-priming performance, in a self-priming type centrifugal pump in which an annular priming action chamber is sectioned around a pipe wall of an axial flow sucking pipe line communic...  
JP3098864B2
PURPOSE: To provide a pullout-type self-priming pump of facilitating maintenance and inspection by Providing a shape and dimension such as mounting/removing a casing cover and a lower part casing from upward relating to a casing main uni...  
JP2000287483A
To avoid a stepped out brushless motor caused by counter-electromotive force by providing a changeover control part which changes compulsory synchronous control over to feedback synchronous control, when the phase difference between a co...  
JP2000283082A
To shorten the self-priming time of bathwater and reduce the noise to attain the more compact size of a pump and the improvement in convenience of a washing machine by arranging a return hole of self-priming water within a spiral passage...  
JP2000274389A
To miniaturize the device with a small circulating quantity and energy saving by providing a circulating water passage for circulating a gas-liquid separated fluid to the suction port of an impeller, and providing a flow regulating means...  
JP2000274388A
To minimize the water supply volume and improve the reliability even if foreign matter is present in water by providing a control means, so that a pump is operated when the water flow is detected by a fluid flow detecting means. When an ...  
JP2000265985A
To prevent noise from being easily generated, improve durability of parts, and restrain heat generation on a motor. In a pump device, impellers 4, 5 are provided on an output shaft 16 of a motor, and fluid is fed out by rotationally driv...  
JP3091816B2  
JP2000230494A
To reduce the number of piping such as an intake pipe, improve power efficiency of a system by preferably applying heat releasing energy of a non-contact switching unit such as an electric motor and a triac so as to eliminate a coolant f...  
JP3079271B2
PURPOSE: To enhance the self-priming capacity of a self-priming pump and to enhance the maintenance property of the pump. CONSTITUTION: A pump unit 2 comprises a feed water pump portion 14, a self-priming pump portion 15 and a steam sepa...  
JP2000227086A
To provide a self-priming pump which can reduce reflux quantity after completing self-priming and make the device small-sized. This self-priming pump is provided with a pressure chamber 4 taking in fluid in a water suction chamber 3 to w...  
JP2000213491A
To reduce noises, improve durability, reduce the number of part items, assembling steps and thereby a cost of a pump device. Fluid is fed by rotating an impeller 15 attached to an output shaft 2 of a motor. Bearing devices 20, 21 rotatab...  
JP2000199492A
To provide an intake pump having balanced self-priming capability and flow-rate characteristic, by specifying a space between a projection formed in a runner and a diaphragm that separates an outlet chamber and an intake chamber from eac...  
JP3061524B2  
JP2000179487A
To provide a superior cutoff effect at low cost by integrally forming a projection preventing a packing part from sticking out by a pump internal pressure and preventing the liquid in a pump from flowing to the outside in a check valve i...  
JP2000170696A
To provide a water supply device having refuse eliminating function facilitating the maintaining of a pump, resisting breaking down, and being capable of rapidly starting the pump.This water supply device for supplying water from natural...  
JP3054131B1
[Summary] Subject The boiler feeding device which the maintenance management of a pump is easy, and there is little failure, and was equipped with the garbage removal function in which quick pump starting is possible is offered. Solution...  
JP2000507324A
(57) It is the method and equipment which extract gas from the medium in relation to sending out a summary gas content fluid medium with a centrifugal pump (6, 21, 29). A pump is designed in order to carry out gas separation, and it disc...  
JP3051659B2
To provide a priming device for a feed water pump not to need a steam separator. An air-assist part 20 for drawing outside air is provided in some part from a rotary vane pump 1 to its discharge port 9. The air assist part 20 is formed o...  
JP3068887U
[A subject] 乾状態 suitable for especially cooling of a ship diesel engine -- self-priming できる -- a new advanced Tsuyoshi Daino rotation fluid pump, a new impeller and a framework solid for it, and a flexible impeller pump assem...  
JP2000130382A
To provide good economy and to prevent the wasting of resources by realizing miniaturization and low costs by using a DC motor, and replacing a short-life constituting member. This centrifugal pump is housed in a cover 2, and provided wi...  
JP2000110797A
To allow a valve guide to be easily housed in a valve case by using synthetic plastic to make the valve guide, fitting a C-ring to the valve guide on its outer periphery, using a casting for the valve case, and providing a groove in the ...  
JP2000104695A
To vary a capability range as a swirl pump and to enhance self-suction capability.A suction chamber 1d communicated with a suction opening 1f is provided in a casing body 1 at its lower part. A peripheral pump part 4 is placed on the suc...  
JP3027186B2  
JP3022845B2
To provide a sand pump with enhanced suction ability with while preventing generation of cavitation even with a small diameter. Generation of cavitation is prevented by enhancing the suction ability by providing a sludge impeller 13 insi...  
JP2000073980A
To provide a self-priming pump no allowing liquid flowing inside a discharge opening to be in a vortex flow. This self-priming pump 1 is composed of a tank room 18 equipped with a suction room 20 provided with a suction opening for sucki...  
JP2000064978A
To realize a shortening of a self-priming required time and an enhancement of a pumping performance and to realize a small size and cost reduction. In a self-priming pump, a self-priming action for taking out an air in a suction hose 11 ...  
JP2000045979A
To provide a sand pump with enhanced suction ability with while preventing generation of cavitation even with a small diameter. Generation of cavitation is prevented by enhancing the suction ability by providing a sludge impeller 13 insi...  
JP2000045899A
To provide a device which has an improved pump characteristic at any of a high temperature discharge stage, a high temperature start stage, a normal temperature discharge stage and a normal temperature start stage, and which can reduce d...  
JP3007052B2  
JP2000027784A
To suppress a temperature rise of a bearing part without affecting a pumping characteristic by providing a water storing part on a thinned part of a casing forming a channel for circulating water and communicating this water storing part...  
JP2000009080A
To provide a method for preventing freezing of water remaining in a pump, which can prevent freezing of water remaining in the pump and also can certainly and smoothly carry out restart. When drain operation is started (S1), after water ...  
JP2996621B2  
JP2998779B2
PURPOSE: To prevent the excessive operation by stopping operation of a vacuum pump in a full water state. CONSTITUTION: A full water state in a pump flow passage is detected by a full of water detecting device 21 arranged at the top part...  
JPH11515071A
(57) The pump ring (3) which summary book invention relates to the centrifugal pump equipped with the gas separation means for floating matter, and is equipped with a hub (27), The pump chamber front portion (4A) which faces an entrance ...  
JPH11351179A
To prevent malfunction and improve operating reliability. A pump 21 has a suction port 23 and a discharge port 24 in the upper part of a casing 22 and an impeller 25 inside. On a flapper 28 arranged near the suction port 23 in the casing...  
JPH11343987A
To lower noise at the time of a self-priming operation and shorten self-priming required time by intermittently supplying water plural number of times in a state that a self-priming operation is temporarily stopped after priming is fille...  
JPH11343988A
To prevent an impeller from locking and prolong the time till eventual lock. A secondary impeller 4 is supported by a metal bearing 10, and a thrust washer 11a is installed in a place mating with the end face of the metal bearing 10 and ...  
JPH11336688A
To increase the extent of self-priming efficiency as compared with the conventional technology in particular by making both the self-priming efficiency and the current pump efficiency in higher performance. A self-priming pump 1 is provi...  
JP2987571B2  
JPH11324966A
To securely operate a flow switch arranged outside of a discharge port, and to eliminate the foreign matters caught between a partitioning plate and a rubber pad. A self-priming pump 1 is formed of a pump unit 6 formed by fixing a first ...  
JPH11324965A
To provide the sufficient force for coupling a driving magnet and an impeller, to miniaturize a device, and to prevent the generation of low- temperature magnetism reduction. A magnetic driving pump 1 has a casing 2 for housing an impell...  
JPH11319433A
To simplify the generation of vacuum and to perform the suction of water in a water supply pipe. This filter is provided with a housing equipped with a removable cover 12 for closing an inner chamber 13. Into the inner chamber 13, water ...  
JP2980339B2  
JP2982179B2  
JPH11311194A
To prevent advance of air toward a pump so as to prevent falling of water by arranging a closing valve for shutting out flow of air reserved in a delivery pipe side when a delivery valve is opened, in a direction perpendicular to a flow ...  
JPH11303786A
To provide a self-priming pump which has high self-priming efficiency and high pumping efficiency. A self-priming pump 1 is composed of a pump part 4 which has an inner space divided into a tank chamber 20 and a pump chamber 21 by means ...  
JPH11294368A
To solve a problem in a self-priming pump, that when water is returned from the water tank part of a priming casing and a reflux chamber to the inside of the impeller chamber of an impeller casing through a communicating hole under a wat...  
JPH11294396A
To eliminate a nonconformity, since a drain plug is likely installed near the angle part where the chamfering of the casing inner wall of a pump is given, and in this case, a cross section part is formed near a drain hole to be a water p...  
JPH11287193A
To surely perform air bleed and priming of a pump, automatically start the pump even in the case of starting the pump in emergency or at any time, and form a device small, compact and inexpensive. In a liquid pump device provided with a ...  

Matches 651 - 700 out of 2,711